Wind Energy Facts

Worldwide wind power

In 2008, more wind power capacity was installed in the EU and the US than any other electricity-generated technology.

In China, total capacity doubled for the 4th year in a row. By 2010, China plans to install some 18 GW of additional wind capacity – about the equivalent of erecting 1 wind turbine per hour with a capacity of 1 MW from now till then.

Over 80 countries around the world now have commercial wind power installations, including Mongolia and Pakistan. More projects are under development in Ethiopia, Kenya and Tanzania.

Gathering strength

The size of commercial wind turbines can vary between 250 kw and 6 MW.

A 5 MW turbine can produce more than 15 million kWh in a year. This is enough to power 1,500 to 15,000 households, depending on their average electricity consumption.

Offshore wind turbines can produce more electricity due to better wind conditions.

Wind energy has become very efficient and, in many cases, onshore wind is competitive with or even cheaper than nuclear or fossil fuels. Offshore wind is still relatively expensive and needs support to grow and achieve economies of scale.

More information

Did you know?

The first windmills were probably invented in eastern Persia in the 9th century. After the 12th century, windmills were commonly used in many parts of the world to grind cereals and to pump water. Today, modern wind turbines are used to produce electricity.